Difference in GRN value and MIRO value for delivery Cost condition category in PO

[Zonaid]

Dear Experts,

I am facing an issue when doing MIRO for a PO, GRN value and MIRO value for delivery Cost condition category in PO. In the PO condition, separate logistic vendor has been assigned. 

Only Red marked value showing wrong in MIRO. But other conditions is showing correctly.

But in MIRO Simulation, GR/IR clearing account is debiting correctly. only vendor amount is showing wrong. Difference amount is reducing material price.

BR